CN103682206B - A kind of Leak-proof cap of lithium-ion-power cell - Google Patents
A kind of Leak-proof cap of lithium-ion-power cell Download PDFInfo
- Publication number
- CN103682206B CN103682206B CN201210336430.1A CN201210336430A CN103682206B CN 103682206 B CN103682206 B CN 103682206B CN 201210336430 A CN201210336430 A CN 201210336430A CN 103682206 B CN103682206 B CN 103682206B
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- China
- Prior art keywords
- substrate
- negative
- positive
- leak
- lithium
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses the Leak-proof cap of a kind of lithium-ion-power cell, described Leak-proof cap includes burst disk and covers the leakproof film of burst disk.Described burst disk includes that protecting film is separated by a distance with protecting film and surrounds the fixed part of protecting film and be connected the indentation portion of protecting film and fixed part respectively；Described leakproof film includes the contact site of the hollow being placed on fixed part and is positioned at contact site the air bag being connected with contact site.Compared with prior art, the sharpest edges of the present invention are: by increasing leakproof film in the structure that the electrolyte in guaranteeing battery does not leaks, it is ensured that the electrolyte in battery does not leaks.
Description
[technical field]
The present invention relates to technical field of lithium ion, particularly relate to the leakage-proof cover of a kind of lithium-ion-power cell
Cap.
[background technology]
Lithium ion battery has high-energy-density and various excellent properties, therefore applies more and more universal.Cylinder
Shape lithium ion battery especially its standardized size, ripe technique and equipment, in lithium ion battery market
Occupy important share.
The extensive application of lithium ion battery so that it is safety increasingly becomes the problem that people pay close attention to, study.
Existing lithium ion battery is typically all and uses block design to ensure safe.Existing battery cap typically sets
Having a screening glass, described screening glass is that metallic aluminium is made, and described screening glass is provided with protecting film, when battery is sent out
When raw electric heating is out of control, after inner pressure of battery raises, the electrolyte of vaporization will break through protecting film, and flows out battery
Outside housing.This kind of protected mode, although can timely and effectively the heat of inside battery be released, it is to avoid
The situation of blast is there is in battery because pressure is excessive.But, the maximum weak point of this kind of protected mode exists
In: the electrolyte of the high temperature discharged from protecting film rent and mixture thereof run into the air of outside and easily send out
Raw burning, the final use giving whole set of cells brings great potential safety hazard.
In view of this, the Leak-proof cap of a kind of lithium-ion-power cell of necessary offer is to solve the problems referred to above.
[summary of the invention]
It is an object of the invention to provide a kind of simple in construction, and can ensure that what the electrolyte in battery did not leaked
The Leak-proof cap of lithium-ion-power cell.
To achieve these goals, the invention provides the Leak-proof cap of a kind of lithium-ion-power cell, described
Leak-proof cap includes burst disk and covers the leakproof film of burst disk, and described burst disk includes protecting film and protection
Film is separated by a distance and surrounds the fixed part of protecting film and connects protecting film and the indentation portion of fixed part respectively,
Described leakproof film includes the contact site of the hollow being placed on fixed part and is positioned at contact site and is connected with contact site
Air bag, described leakproof film is round sheet, and it is by high temperature resistant, aging resistance, corrosion resistant compliant rubber
Make.
As a kind of improvement of the Leak-proof cap of lithium-ion-power cell of the present invention, described Leak-proof cap also includes
The guard shield of the hollow being placed on the contact site of leakproof film.
As a kind of improvement of the Leak-proof cap of lithium-ion-power cell of the present invention, described Leak-proof cap also includes
Substrate, described substrate includes lower surface that upper surface is relative with upper surface, from the downward surface indentation of upper surface
And not through the fixing groove of lower surface, described fixing groove includes bottom land and the cell wall extended from bottom land to upper surface,
Described substrate also includes the through hole run through from bottom land to lower surface, and the fixed part laser welding of described burst disk exists
The bottom land of fixing groove, the fixed part of described burst disk and the contact site of protecting film are connected to the groove of fixing groove respectively
Wall.
As a kind of improvement of the Leak-proof cap of lithium-ion-power cell of the present invention, described Leak-proof cap also includes
The positive electricity end that is positioned on substrate, it is positioned on substrate that the negative electricity separated by a distance with positive electricity end be extreme, folder
Positive felt pad between positive electricity end and substrate, it is clipped in that negative electricity is extreme and negative felt pad between substrate, is placed in base
Anelectrode lead-out tablet under plate, it is placed under substrate and the negative electrode separated by a distance with anelectrode lead-out tablet draws
Slice, the positive electricity basin lid being clipped between substrate and anelectrode lead-out tablet, it is clipped between substrate and negative electrode lead-out tablet
Negative electricity basin lid, run through positive electricity end, positive felt pad, substrate, positive electricity basin lid and anelectrode lead-out tablet also simultaneously
Positive electricity end, positive felt pad, substrate, positive electricity basin lid and anelectrode lead-out tablet are fixed together is the most fixing
Part and simultaneously run through negative electricity felt pad extreme, negative, substrate, negative electricity basin lid and negative electrode lead-out tablet and by negative electricity
Extremely, the negative fixture that negative felt pad, substrate, negative electricity basin lid and negative electrode lead-out tablet are fixed together.
As a kind of improvement of the Leak-proof cap of lithium-ion-power cell of the present invention, described burst disk and substrate it
Between use laser welding process connect.
Compared with prior art, the sharpest edges of the Leak-proof cap of lithium-ion-power cell of the present invention are: anti-
Leakproof film set up by Cancellation Missed cap.When electrolyte in the battery and mixture thereof expand rapidly, this leakproof film can be received
Hold electrolyte and mixture thereof, thus avoid electrolyte and mixture leaks.
[accompanying drawing explanation]
Fig. 1 is the axonometric chart of lithium-ion-power cell of the present invention；
Fig. 2 is the three-dimensional exploded view of the Leak-proof cap of lithium-ion-power cell shown in Fig. 1；
Fig. 3 is the sectional view of lithium-ion-power cell of the present invention；
Fig. 4 is the enlarged drawing of part A described in Fig. 3.
[detailed description of the invention]
In order to make the purpose of the present invention, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with
The drawings and specific embodiments, are further elaborated to the present invention.It should be appreciated that this explanation
Detailed description of the invention described in book is only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1-4, the present invention provides the Leak-proof cap 10 of a kind of lithium-ion-power cell 100, this lithium from
The Leak-proof cap 10 of sub-electrokinetic cell 100 is used for being fastened on lithium-ion battery shell 90, primarily serves
Sealed cell housing 90 and protection lithium-ion-power cell 100 use safe effect.Described Leak-proof cap 10
Including substrate 1, the positive electricity end 21 being placed on substrate 1, it is placed on substrate 1 and is separated by with positive electricity end 21
The negative electricity of certain distance is extreme 22, be clipped between positive electricity end 21 and substrate 1 positive felt pad 31, be clipped in negative
Negative felt pad 32, the anelectrode lead-out tablet 41 being placed under substrate 1 between electrode tip 22 and substrate 1, it is placed in
Substrate 1 time the negative electrode lead-out tablet 42 separated by a distance with anelectrode lead-out tablet 41, be clipped in substrate 1 and
Positive electricity basin lid 51 between anelectrode lead-out tablet 41, the negative battery being clipped between substrate 1 and negative electrode lead-out tablet 42
Lid 52, run through positive electricity end 21, positive felt pad 31, substrate 1, positive electricity basin lid 51 and anelectrode simultaneously and draw
Slice 41 the positive fixture 61 that said elements is fixed together and to run through negative electricity extreme 22, negative absolutely simultaneously
Said elements is also fixed together by edge pad 32, substrate 1, negative electricity basin lid 52 and negative electrode lead-out tablet 42
Negative fixture 62.Described substrate 1 also includes running through the through hole 14 of substrate, fixing on substrate 1 and cover logical
The burst disk 7 in hole, cover the leakproof film 8 of described burst disk 7 and be placed on leakproof film 8 respectively by burst disk 7
Guard shield 9 on substrate 1 fixing with leakproof film 8.
Described burst disk 7 includes that protecting film 71 and protecting film 71 are separated by a distance and surround protecting film 71
Fixed part 72 and connect protecting film 71 and the indentation portion 27 of fixed part 72 respectively.Described burst disk uses relatively
Thin metal aluminium flake is made.Described protecting film is positioned at the middle part of burst disk and to the direction of leakproof film projection.By
Soft in metallic aluminium material, therefore when cell malfunctions, its internal air pressure producing gas reaches one
During fixed number value, gas can break through protecting film and enter leakproof film, i.e. protecting film will disconnect along indentation portion.
Thus, the setting in described indentation portion so that during cell malfunctions, burst disk can first rupture from indentation portion.
Described leakproof film 8 is round sheet, it contact site 81 He including being placed in the hollow on fixed part 72
It is positioned at contact site 81 air bag 82 being connected with contact site 81.Described leakproof film generally use high temperature resistant,
Aging-resistant compliant rubber is made.
Substrate 1 include lower surface 12 that upper surface 11 is relative with upper surface 11 and be positioned in the middle part of substrate 1 from
Upper surface 11 caves in lower surface 12 and not through the fixing groove 13 of lower surface 12.Described fixing groove 13 wraps
Include bottom land 131 and the cell wall 132 extended from bottom land 131 to upper surface 11.During assembling, described burst disk 7
Fixed part 72 and the contact site 81 of leakproof film 8 be contained in respectively in fixing groove 13, specifically, described anti-
The fixed part 72 of quick-fried 7 is connected to bottom land 131 and cell wall 132, the described leakproof film 8 of fixing groove 13 respectively
Contact site 81 be connected to the fixed part 72 of burst disk 7 and the cell wall 132 of fixing groove 13 respectively.
Guard shield 9 is the column of hollow, during it includes the press section 91 of hollow and is surrounded by press section 91
Sky portion 92.During assembling, the press section 91 of guard shield 9 is pressed against the contact site 81 of leakproof film 8；Press simultaneously
On the cell wall 132 of the fixing groove 13 that the outer surface in portion 91 is connected to substrate 1.
The press section 91 of the fixed part 72 of burst disk 7, the contact site 81 of leakproof film 8 and guard shield 9 is adopted respectively
Weld together with the fixing groove 13 of ultrasonic welding process with substrate 1.
Positive and negative electrode end 21,22 is made of electrically conductive material and has identical structure.Described positive electricity end
21 include the upper surface 11 being placed in substrate 1 and are positioned at the positive body 211 of fixing groove 13 side, from original
Positive extension 212 that the middle part of body 211 extends to the direction away from substrate 1 and run through described positive body
Some anelectrode through holes 213 of 211.Correspondingly, described negative electricity extreme 22 includes being placed in the upper of substrate 1
Surface 11 and be positioned at fixing groove 13 opposite side negative body 221, think highly of oneself body 221 middle part to far
The negative extension 222 extended from the direction of substrate 1 and the some negative electrodes running through described negative body 221 pass through
Through hole 223.
Described positive felt pad 31 is in tabular, and it includes running through some positive felt pad through holes 311 thereon.
The structure of described negative felt pad 32 is identical with the structure of positive felt pad 31, and it includes running through thereon negative
Felt pad through hole 321.Described positive and negative felt pad uses poly-second propylene material to make, thus has preferably
Heat-resisting quantity and insulating properties.Owing to poly-second propylene material is prior art, the most in this manual to it the most not
Elaborate.
Described positive and negative electrode lead-out tablet 41,42 is made of electrically conductive material and has identical structure.Described
Anelectrode lead-out tablet 41 includes positive electrode plate 411, from positive electrode plate 411 to extending away from substrate 1 direction
Positive Extendible flake 412 and the positive electrode plate through hole 413 running through positive electrode plate 411.Correspondingly, described negative electrode
Lead-out tablet 42 includes negative electrode plate 421 and from negative electrode plate 421 to the negative extension extended away from substrate 1 direction
Sheet 422 and the negative electrode plate through hole 423 running through negative electrode plate 421.
Described positive and negative battery cover 51,52 is made by insulant and has identical structure.This embodiment party
In formula, positive and negative battery cover 51,52 is also in tabular.Described positive electricity basin lid 51 include running through thereon just
Battery cover through hole 511；Correspondingly, described negative electricity basin lid 52 includes running through negative electricity basin lid through hole thereon
522.Preferably, described positive and negative battery cover all uses poly-second propylene material to make.
Described positive and negative fixture 61,62 has identical structure.Described positive fixture 61 includes just fixing
Body 611 and the positive insulated ring 612 being set in outside positive fixed body 611.During assembling, described positive insulated ring 612 is received
It is dissolved in the substrate through hole of substrate 1 15.Correspondingly, described negative fixture 62 includes negative fixed body 621 He
It is set in the negative insulated ring 622 outside negative fixed body 621.During assembling, described negative insulated ring 622 is also contained in institute
State in the substrate through hole of substrate 1 15.Described positive and negative fixed body is made of electrically conductive material, and it is the most electric
It is connected to positive and negative electrode end 21,22.
During assembling, positive fixture is each passed through the anelectrode through hole of positive electricity end, positive felt pad from top to bottom
Positive felt pad through hole, the substrate through hole of substrate, the positive electricity basin lid through hole of positive electricity basin lid and anelectrode
The positive electrode plate through hole of lead-out tablet.Described negative fixture is each passed through the negative electrode that negative electricity is extreme from top to bottom
Through hole, the negative negative felt pad through hole of felt pad, the substrate through hole of substrate, the negative battery of negative electricity basin lid
The negative electrode plate through hole of lid through hole and negative electrode lead-out tablet.In present embodiment, described Leak-proof cap bag
Include two positive fixtures and two negative fixtures.Correspondingly, described anelectrode through hole, positive felt pad are through
Hole, positive electricity basin lid through hole, positive electrode plate through hole, negative electrode through hole, negative felt pad through hole, negative
Battery cover through hole, the quantity of negative electrode plate through hole are also respectively two.The quantity of above-mentioned each element is also
One or three and more than three can be selected according to concrete applied environment.It addition, the substrate of substrate is through
The quantity in hole is corresponding with the quantity of said elements.
Described positive and negative felt pad, positive and negative battery cover and positive and negative insulated ring all use Teflon material to make,
Can not deform upon under 350 DEG C of high temperature, thus preferable sealing effectiveness can be played.Due to described Teflon material
Material (English full name is Polytetrafluoroetylene) is prior art, does not the most make it in detail
Describe in detail bright.
In other selectable embodiments, a ring plate between described leakproof film and burst disk, can be set up.Institute
State ring plate and include stator and the film perforation surrounded by stator.During assembling, described stator is folded in leakproof film
Contact site and the fixed part of burst disk between, the indentation of protecting film surrounding can be pushed down in the edge of such stator
Portion.After using above technical scheme, protecting film is caused to send out when the pressure of inside battery gas reaches to set numerical value
During raw deformation, described ring plate pushes down burst disk, burst disk thus can not deform upon, described burst disk thus
Being easier to rupture at indentation portion, the gas of inside battery is it is thus possible to quickly get rid of from breaking part.
When lithium-ion-power cell in the course of the work or is clashed by external force, it is possible to electric heating occurs
Phenomenon out of control, now, the temperature of the electrolyte in battery steeply rises to 100-200 DEG C, and electrolyte vaporizes,
Inner pressure of battery is caused to raise rapidly.In order to protect the safety of whole set of cells, lithium ion power of the present invention electricity
The Leak-proof cap in pond not only has the burst disk design of conventional batteries, is the most also equipped with leakproof film.In reality
In using, the electrolyte and the mixture thereof that break through the vaporization of the protecting film of burst disk will impact leakproof film, by
Using high temperature resistant, aging-resistant compliant rubber in leakproof film to make, therefore, leakproof film will not rupture,
Only formation be can expand rapidly along the guard shield of hollow and vaporization shape electrolyte and the air bag of mixture thereof housed.Treat electricity
After pond internal temperature reduces, leakproof film, under the effect of elastic force, reverts to again original state, now, in air bag
Electrolyte and mixture will return to battery container.
The Leak-proof cap of lithium-ion-power cell of the present invention, is not restricted to institute in description and embodiment
Describe, for the personnel of familiar field, be therefore easily achieved additional advantage and amendment, therefore not
Deviate from claim and in the case of the spirit and scope of general concept that equivalency range is limited, the present invention is also
Be not limited to specific details, representational equipment and shown here as with describe examples shown.
Claims (5)
1. the Leak-proof cap of a lithium-ion-power cell, it is characterised in that: described Leak-proof cap includes explosion-proof
Sheet and the leakproof film of covering burst disk, described burst disk includes that protecting film and protecting film are separated by a distance also
Surrounding the fixed part of protecting film and connect protecting film and the indentation portion of fixed part respectively, described leakproof film includes putting
The contact site of the hollow on fixed part be positioned at contact site the air bag being connected with contact site, described leakproof
Film is round sheet, and it is made up of high temperature resistant, aging resistance, corrosion resistant compliant rubber.
2. the Leak-proof cap of lithium-ion-power cell as claimed in claim 1, it is characterised in that: described anti-
Cancellation Missed cap also includes the guard shield of the hollow being placed on the contact site of leakproof film.
3. the Leak-proof cap of lithium-ion-power cell as claimed in claim 1, it is characterised in that: described anti-
Cancellation Missed cap also includes lower surface that substrate, described substrate include that upper surface is relative with upper surface, from upper surface
Surface indentation and the fixing groove not through lower surface downwards, described fixing groove includes bottom land and from bottom land upwards table
The cell wall that face extends, described substrate also includes the through hole run through from bottom land, consolidating of described burst disk to lower surface
Determine portion's laser welding bottom land at fixing groove, the fixed part of described burst disk and the contact site of protecting film to support respectively
It is connected on the cell wall of fixing groove.
4. the Leak-proof cap of lithium-ion-power cell as claimed in claim 3, it is characterised in that: described anti-
Cancellation Missed cap also include the positive electricity end being positioned on substrate, be positioned on substrate separated by a distance with positive electricity end
Negative electricity is extreme, be clipped between positive electricity end and substrate positive felt pad, be clipped in that negative electricity is extreme and between substrate negative absolutely
Edge pad, the anelectrode lead-out tablet being placed under substrate, it is placed under substrate and is separated by a spacing with anelectrode lead-out tablet
From negative electrode lead-out tablet, the positive electricity basin lid being clipped between substrate and anelectrode lead-out tablet, be clipped in substrate and negative electricity
Negative electricity basin lid between the lead-out tablet of pole, run through positive electricity end, positive felt pad, substrate, positive electricity basin lid and just simultaneously
Positive electricity end, positive felt pad, substrate, positive electricity basin lid and anelectrode lead-out tablet are also fixed on by electrode leading-out sheet
Positive fixture together and run through negative electricity felt pad extreme, negative, substrate, negative electricity basin lid and negative electrode simultaneously and draw
Slice negative electricity is extreme, negative felt pad, substrate, negative electricity basin lid and negative electrode lead-out tablet are fixed together
Negative fixture.
5. the Leak-proof cap of lithium-ion-power cell as claimed in claim 3, it is characterised in that: described anti-
Laser welding process is used to be connected between quick-fried and substrate.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210336430.1A CN103682206B (en) | 2012-09-12 | 2012-09-12 | A kind of Leak-proof cap of lithium-ion-power cell |
| EP13173880.9A EP2683001B1 (en) | 2012-07-02 | 2013-06-26 | Cap assembly for lithium ion secondary battery |
| US13/929,837 US9240577B2 (en) | 2012-07-02 | 2013-06-28 | Cap assembly for lithium ion secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210336430.1A CN103682206B (en) | 2012-09-12 | 2012-09-12 | A kind of Leak-proof cap of lithium-ion-power cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103682206A CN103682206A (en) | 2014-03-26 |
| CN103682206B true CN103682206B (en) | 2016-12-21 |
Family
ID=50319055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210336430.1A Expired - Fee Related CN103682206B (en) | 2012-07-02 | 2012-09-12 | A kind of Leak-proof cap of lithium-ion-power cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103682206B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293801B (en) * | 2015-07-12 | 2019-05-07 | 深圳安正检测技术有限公司 | The explosion-proof method for early warning of lithium battery |
| CN106601937B (en) * | 2016-12-08 | 2019-08-30 | 德阳九鼎智远知识产权运营有限公司 | A kind of lithium-ion-power cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168542A (en) * | 1996-05-31 | 1997-12-24 | 三星电管株式会社 | Cap assembly of secondary batteries |
| CN1407638A (en) * | 2001-09-11 | 2003-04-02 | 日本电池株式会社 | Lead acid battery |
| CN1450680A (en) * | 2002-04-10 | 2003-10-22 | 伊万莫利能量（加拿大）有限公司 | Top cap for rechargeable lithium cell |
| CN100521353C (en) * | 2005-07-26 | 2009-07-29 | 三星Sdi株式会社 | Rechargeable battery |
| CN201601187U (en) * | 2009-12-31 | 2010-10-06 | 比亚迪股份有限公司 | Lithium ion battery |
| CN201994354U (en) * | 2011-04-12 | 2011-09-28 | 刘怀志 | Integral type anti-explosion cover plate of power battery |
| CN202259481U (en) * | 2011-10-25 | 2012-05-30 | 福建南平南丰电池有限公司 | Leakage-proof structure of alkaline zinc-manganese battery |
| CN202259466U (en) * | 2011-01-10 | 2012-05-30 | 广东博特动力能源有限公司 | Anti-leakage zinc-nickel battery cap |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4720065B2 (en) * | 2001-09-04 | 2011-07-13 | 日本電気株式会社 | Film outer battery and battery pack |
-
2012
- 2012-09-12 CN CN201210336430.1A patent/CN103682206B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168542A (en) * | 1996-05-31 | 1997-12-24 | 三星电管株式会社 | Cap assembly of secondary batteries |
| CN1407638A (en) * | 2001-09-11 | 2003-04-02 | 日本电池株式会社 | Lead acid battery |
| CN1450680A (en) * | 2002-04-10 | 2003-10-22 | 伊万莫利能量（加拿大）有限公司 | Top cap for rechargeable lithium cell |
| CN100521353C (en) * | 2005-07-26 | 2009-07-29 | 三星Sdi株式会社 | Rechargeable battery |
| CN201601187U (en) * | 2009-12-31 | 2010-10-06 | 比亚迪股份有限公司 | Lithium ion battery |
| CN202259466U (en) * | 2011-01-10 | 2012-05-30 | 广东博特动力能源有限公司 | Anti-leakage zinc-nickel battery cap |
| CN201994354U (en) * | 2011-04-12 | 2011-09-28 | 刘怀志 | Integral type anti-explosion cover plate of power battery |
| CN202259481U (en) * | 2011-10-25 | 2012-05-30 | 福建南平南丰电池有限公司 | Leakage-proof structure of alkaline zinc-manganese battery |
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| Publication number | Publication date |
|---|---|
| CN103682206A (en) | 2014-03-26 |
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Effective date of registration: 20170620 Address after: 338000 Jiangxi province Xinyu City Yushui Village Industrial Base Patentee after: JIANGXI JIAWO NEW ENERGY CO.,LTD. Address before: 518000 Guangdong Province, Shenzhen City Pingshan Pingshan community Zhu Keng Industrial Zone 9 1-3 Patentee before: Shenzhen Optimum Battery Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A kind of leakproof block of lithium-ion-power cell Effective date of registration: 20170906 Granted publication date: 20161221 Pledgee: The Bank of Jiujiang branch of Limited by Share Ltd. Yushui Pledgor: JIANGXI JIAWO NEW ENERGY CO.,LTD. Registration number: 2017360000008 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 |